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    Re: frame formats-header digest



    
    
    As in the foils - 1. Julo
    
    Mark Bakke <mbakke@cisco.com> on 30/03/2001 19:32:37
    
    Please respond to Mark Bakke <mbakke@cisco.com>
    
    To:   Julian Satran/Haifa/IBM@IBMIL
    cc:   ips@ece.cmu.edu
    Subject:  Re: frame formats
    
    
    
    
    
    Excellent.  Which header digest positioning method will we choose?
    
    1. Single header digest, after BHS and AHS
    
    2. Two header digests, one for BHS, one for AHS
    
    3. Single header digest for BHS; AHS is added to data digest
    
    Option 3 will not work well with iSCSI proxies and gateways
    that may change header information, but keep the data end-to-end.
    
    To me, that leaves option 1 and 2.  So, which is easier, having
    a single header digest in a variable location, or having the
    potential for two header digests; one in a fixed location, and
    an optional one in a variable location?
    
    I don't believe that we will see AHS on most iSCSI PDUs, so is
    it OK to have a "slow path" for these?
    
    --
    Mark
    
    julian_satran@il.ibm.com wrote:
    >
    > Dear colleagues,
    >
    > It look like Format-2 is selected by popular vote.
    >
    > Julo
    
    --
    Mark A. Bakke
    Cisco Systems
    mbakke@cisco.com
    763.398.1054
    
    
    
    


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